DockerCLI/cli/command/container/attach_test.go

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package container
import (
"bytes"
"io/ioutil"
"testing"
"github.com/docker/cli/cli/internal/test"
"github.com/docker/docker/api/types"
"github.com/docker/docker/pkg/testutil"
"github.com/pkg/errors"
)
func TestNewAttachCommandErrors(t *testing.T) {
testCases := []struct {
name string
args []string
expectedError string
containerInspectFunc func(img string) (types.ContainerJSON, error)
}{
{
name: "client-error",
args: []string{"5cb5bb5e4a3b"},
expectedError: "something went wrong",
containerInspectFunc: func(containerID string) (types.ContainerJSON, error) {
return types.ContainerJSON{}, errors.Errorf("something went wrong")
},
},
{
name: "client-stopped",
args: []string{"5cb5bb5e4a3b"},
expectedError: "You cannot attach to a stopped container",
containerInspectFunc: func(containerID string) (types.ContainerJSON, error) {
c := types.ContainerJSON{}
c.ContainerJSONBase = &types.ContainerJSONBase{}
c.ContainerJSONBase.State = &types.ContainerState{Running: false}
return c, nil
},
},
{
name: "client-paused",
args: []string{"5cb5bb5e4a3b"},
expectedError: "You cannot attach to a paused container",
containerInspectFunc: func(containerID string) (types.ContainerJSON, error) {
c := types.ContainerJSON{}
c.ContainerJSONBase = &types.ContainerJSONBase{}
c.ContainerJSONBase.State = &types.ContainerState{
Running: true,
Paused: true,
}
return c, nil
},
},
{
name: "client-restarting",
args: []string{"5cb5bb5e4a3b"},
expectedError: "You cannot attach to a restarting container",
containerInspectFunc: func(containerID string) (types.ContainerJSON, error) {
c := types.ContainerJSON{}
c.ContainerJSONBase = &types.ContainerJSONBase{}
c.ContainerJSONBase.State = &types.ContainerState{
Running: true,
Paused: false,
Restarting: true,
}
return c, nil
},
},
}
for _, tc := range testCases {
buf := new(bytes.Buffer)
cmd := NewAttachCommand(test.NewFakeCli(&fakeClient{containerInspectFunc: tc.containerInspectFunc}, buf))
cmd.SetOutput(ioutil.Discard)
cmd.SetArgs(tc.args)
testutil.ErrorContains(t, cmd.Execute(), tc.expectedError)
}
}